Tests

📖 Add GRPOTrainer to README.md (#2713) #7172

Job	Run time
Tests (3.9, ubuntu-latest)	17m 1s
Tests (3.9, windows-latest)	23m 7s
Tests (3.10, ubuntu-latest)	16m 41s
Tests (3.10, windows-latest)	22m 1s
Check code quality	12s
Tests (3.11, ubuntu-latest)	19m 24s
Tests with dev dependencies	17m 59s
Tests with minimum versions	17m 50s
Tests (3.11, windows-latest)	23m 31s
Tests (3.12, ubuntu-latest)	17m 41s
Tests without optional dependencies	9m 40s
Tests (3.12, windows-latest)	24m 8s
	3h 29m 15s

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